<?php
namespace app\admin\controller;

use app\BaseController;

class Index extends BaseController
{
   
    public function a()
    {
        header('content-type:text/html;charset=utf-8');
        define('DB_HOST',env('database.hostname'));
        define('DB_USER',env('database.username'));
        define('DB_PASS',env('database.password'));
        define('DB_NAME',env('database.database'));
        define('DB_PORT',3306);
        define('DB_CHAR','utf8');
        define('APPNAME','');

        $conn=mysqli_connect(DB_HOST.':'.DB_PORT,DB_USER,DB_PASS);
        mysqli_select_db($conn,DB_NAME);
        mysqli_query($conn,'set names ' . DB_CHAR);
        $sql="SHOW TABLE STATUS FROM `" . DB_NAME. "`";
        $result=mysqli_query($conn,$sql);
        $array=array();
    
        while($rows=mysqli_fetch_assoc($result)){
        $array[]=$rows;
        }
        // table count
        $tab_count = count($array);
        echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
        <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="zh">
        <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <title>'.APPNAME.'--数据字典</title>
        <style type="text/css">
            table caption, table th, table td {
                padding: 0.1em 0.5em 0.1em 0.5em;
                margin: 0.1em;
                vertical-align: top;
            }
            th {
                font-weight: bold;
                color: black;
                background: #D3DCE3;
            }
            table tr.odd th, .odd {
                background: #E5E5E5;
            }
            table tr.even th, .even {
                background: #f3f3f3;
            }
            .db_table{
                border-top:1px solid #333;
            }
            .title{font-weight:bold;}
        </style>
        </head>
        <body>
        <div style="text-align:center;background:#D3DCE3;font-size:19px;">
            <b>'.APPNAME.'--数据字典</b>
        </div>
        <div style="background:#f3f3f3;text-align:center;">（注：共'.$tab_count.'张表，按ctrl+F查找关键字）</div>'."\n";
        for($i=0;$i<$tab_count;$i++){
        echo '<ul type="square">'."\n";
        echo '  <li class="title">';
        echo ($i+1).'、表名：[' . $array[$i]['Name'] . ']      注释：' . $array[$i]['Comment'];
        echo '</li>'."\n";
        //查询数据库字段信息
        $tab_name = $array[$i]['Name'];
        $sql_tab='show full fields from `' . $array[$i]['Name'].'`';
        $tab_result=mysqli_query($conn,$sql_tab);
        $tab_array=array();
        
        while($r=mysqli_fetch_assoc($tab_result)){
            $tab_array[]=$r;
        }
        //show keys
        $keys_result=mysqli_query($conn,"show keys from `".$array[$i]['Name'].'`');
        $arr_keys=mysqli_fetch_array($keys_result);
            echo '<li style="list-style: none outside none;"><table border="0" class="db_table" >';
            echo '<tr class="head">
                <th style="width:110px">字段</th>
                <th>类型</th>
                <th>为空</th>
                <th>额外</th>
                <th>默认</th>
                <th style="width:95px">整理</th>
                <th>备注</th></tr>';
            for($j=0;$j<count($tab_array);$j++){
                $key_name=$arr_keys['Key_name'];
                if($key_name="PRIMARY"){
                    $key_name='主键（'.$key_name.'）';
                }
                $key_field=$arr_keys['Column_name'];
                if ( $tab_array[$j]['Field']==$key_field){
                    $key_value="PK";
                }else{
                    $key_value="";
                }
                echo '        <tr class="'.($j%2==0?"odd":"even").'">'."\n";
                echo '          <td>' . $tab_array[$j]['Field'] . '</td>'."\n";
                echo '          <td>' . $tab_array[$j]['Type'] . '</td>'."\n";
                echo '          <td>' . ($key_value!=''?$key_value:$tab_array[$j]['Null']) . '</td>'."\n";
                echo '          <td>' . $tab_array[$j]['Extra'] . '</td>'."\n";
                echo '          <td>' . $tab_array[$j]['Default'] . '</td>'."\n";
                echo '          <td>' . $tab_array[$j]['Collation'] . '</td>'."\n";
                echo '          <td>' . ($key_value!=''?$key_name:$tab_array[$j]['Comment']) . '</td>'."\n";
                echo '        </tr>'."\n";
            }
            echo '  </table></li>'."\n";
            echo '</ul>'."\n";
        
        }
        echo '</body>'."\n";
        echo '</html>'."\n";
    }
}
